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  Kalvebod Tunnel and Shaft Induced Settlement Automation Using Autodesk

  Growing urbanisation and the need for sustainable infrastructure solutions – for transportation, utilities, flood alleviation - bring about the need for ever more ambitious and complex tunnelling projects within urban environments. Such projects require a conscious consideration for urban heritage conservation, e.g. preservation of buildings of historic and cultural significance, as well as for vital urban utilities. This paper presents a tool (TunDRA) developed for the automatic generation of ground settlements assessments due to the 1.25km long Kalvebod Brygge Skybrudstunnel Drainage Tunnel with three shafts. The tool was based on AutoDesk Dynamo and Civil 3D which have been used in the past for highway linear schemes, but this application is novel for tunnel settlements. The ground movements are predicted based on empirical methods and can be estimated for any location in 3-d space. The tool also allows for the identification of affected buildings, particularly those with a protected status and at early stages of projects, such as route selection. The tool links directly to CAD files pulling in alignment and ground surface information efficiently and therefore avoiding the need for manual entry. This innovative approach resulted in an increased output quality, consistency, time and cost savings.

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